/**
 * Copyright 2010 Nicholas Blair, Eric Dalquist
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * 
 */
package com.googlecode.ehcache.annotations.config;

import com.googlecode.ehcache.annotations.impl.CacheNameMatcher;
import com.googlecode.ehcache.annotations.impl.Vote;

/**
 * {@link CacheNameMatcher} that wraps another {@link CacheNameMatcher}
 * and performs a logical NOT on the result of the wrapped {@link #matches(String)} method
 * if not null.
 * 
 * @author Nicholas Blair
 * @version $Id: NotCacheNameMatcherImpl.java 565 2010-07-06 15:24:34Z eric.dalquist@gmail.com $
 */
public final class NotCacheNameMatcherImpl implements CacheNameMatcher {

    private final CacheNameMatcher wrapped;
    /**
     * 
     * @param wrapped
     */
    public NotCacheNameMatcherImpl(CacheNameMatcher wrapped) {
        if(null == wrapped) {
            throw new IllegalArgumentException("CacheNameMatcher argument cannot be null");
        }
        this.wrapped = wrapped;
    }
    /**
     * Retrieve the value from wrapped {@link CacheNameMatcher}'s matches method, then
     * return the {@link Vote#not(Vote)} of the result.
     * 
     * @see Vote#not(Vote)
     * @see com.googlecode.ehcache.annotations.impl.CacheNameMatcher#matches(java.lang.String)
     */
    public Vote matches(String cacheName) {
        Vote result = this.wrapped.matches(cacheName);
        result = Vote.not(result);
        return result;
    }
    /**
     * @return the wrapped {@link CacheNameMatcher}
     */
    public CacheNameMatcher getWrapped() {
        return wrapped;
    }

}
